effective participation of complainants, or any negative consequences upon the right to a reasoned decision and the submission of a complaint. Prisons appeal are discussed. The detainees should apply all available protective should have an enforceable right to measures (e.g. relocation, or severely compensation for inhumane detention sanctioning the staff responsible for conditions. intimidation) aimed at the prevention of future However, the compensation prospect shall not of reprisal or intimidation, and refrain legitimize inhumane and degrading from discouraging attitudes related to treatment and thereby weaken the complaints. legal obligation of the states to bring their standards of detention in line with international standards. Reliable and thorough complaint management as a part of the general data management system is a prerequisite of the effective management of any penitentiary institution. In addition to the diligent management of data in individual cases, states should routinely compile and publish comprehensive disaggregated statistical information about all complaints received. A thorough data management includes the analysis of received complaints in order to identify recurring problems. Protection against reprisal is a key issue related the right to complain. An effective complaint procedure can be exercised only if the detainee cannot reasonably assume any form of reprisal, intimidation